An application uses an Amazon RDS MySQL DB instance. The RDS database is becoming low on disk space. A solutions architect wants to increase the disk space without downtime.
Which solution meets these requirements with the LEAST amount of effort?
A.
Enable storage autoscaling in RDS
B.
Increase the RDS database instance size
C.
Change the RDS database instance storage type to Provisioned IOPS
D.
Back up the RDS database, increase the storage capacity, restore the database, and stop the previous instance
Enabling storage autoscaling allows RDS to automatically adjust the storage capacity based on the application's needs. When the storage usage exceeds a predefined threshold, RDS will automatically increase the allocated storage without requiring manual intervention or causing downtime. This ensures that the RDS database has sufficient disk space to handle the increasing storage requirements.
Amazon RDS for MariaDB, Amazon RDS for MySQL, Amazon RDS for PostgreSQL, Amazon RDS for SQL Server and Amazon RDS for Oracle support RDS Storage Auto Scaling. RDS Storage Auto Scaling automatically scales storage capacity in response to growing database workloads, with zero downtime.
RDS Storage Auto Scaling continuously monitors actual storage consumption, and scales capacity up automatically when actual utilization approaches provisioned storage capacity. Auto Scaling works with new and existing database instances. You can enable Auto Scaling with just a few clicks in the AWS Management Console. There is no additional cost for RDS Storage Auto Scaling. You pay only for the RDS resources needed to run your applications.
https://aws.amazon.com/about-aws/whats-new/2019/06/rds-storage-auto-scaling/#:~:text=of%20the%20rest.-,RDS%20Storage%20Auto%20Scaling,-continuously%20monitors%20actual
Quote "Amazon RDS now supports Storage Auto Scaling" and "... with zero downtime." (Jun 20th 2019) at https://aws.amazon.com/about-aws/whats-new/2019/06/rds-storage-auto-scaling/
See “Amazon RDS now supports Storage Auto Scaling. Posted On: Jun 20, 2019. Starting today, Amazon RDS for MariaDB, Amazon RDS for MySQL, Amazon RDS for PostgreSQL, Amazon RDS for SQL Server and Amazon RDS for Oracle support RDS Storage Auto Scaling. RDS Storage Auto Scaling automatically scales storage capacity in response to growing database workloads, with zero downtime.” at https://aws.amazon.com/about-aws/whats-new/2019/06/rds-storage-auto-scaling/
A is the best answer.
B will not work for increasing disk space, it only improve the IO performance.
C will not work because it will cause downtime.
D is too complicated and need much operational effort.
The key word is No Down time. A would be bewt option
upvoted 2 times
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